Inductor devices – Coil or coil turn supports or spacers – Printed circuit-type coil
Reexamination Certificate
2005-04-19
2005-04-19
Mai, Anh (Department: 2832)
Inductor devices
Coil or coil turn supports or spacers
Printed circuit-type coil
C336S232000, C336S083000
Reexamination Certificate
active
06882261
ABSTRACT:
There are provided a coil-embedded dust core that provides high inductance and a method for manufacturing the same. The coil-embedded dust core includes a coil1formed by winding a flat conductor2and a green body10comprising of ferromagnetic metal powder coated with an insulating material. The coil1is composed of a winding section3in which the flat conductor2having front and back surfaces opposed to each other with a predetermined distance is wound and lead-out end sections4aand4bthat are extended from the winding section3. Either one of the front and back surfaces of the lead-out end section4aand either one of the front and back surfaces of the lead-out end section4bare formed so as to be on the same plane. By using the coil1in which the both end sections (lead-out end sections4aand4b) are formed on the same plane, the coil-embedded dust core can be made smaller in size, and high inductance can be provided.
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Moro Hideharu
Suzuki Tsuneo
Hogan & Hartson LLP
Mai Anh
TDK Corporation
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